<script setup>
import { userRegisterServer, userLoginServer } from '@/api/user';
import { User, Lock } from '@element-plus/icons-vue'
import { ref, watch } from 'vue'
import { useRouter } from 'vue-router'
import { useUserStore } from '@/stores'
import { isLoading, toggleLoading } from '@/composables/loading'
// 基本变量先定义
const userStore = useUserStore()
const router = useRouter()
const isRegister = ref(false)

// 定义表单数据对象
const formModel = ref({
  username: '',
  password: '',
  repassword: ''
})
//定义表单校验规则
const rules = {
  username: [
    {
      required: true,
      message: "用户名不为空",
      trigger: "blur"
    }
  ],
  password: [
    {
      required: true,
      message: "密码不为空",
      trigger: "blur"
    },
    {
      pattern: /^\S{6,15}$/,
      message: '密码为6-15位非空字符',
      trigger: 'blur'
    }
  ],
  repassword: [
    {
      required: true,
      message: "密码不为空",
      trigger: "blur"
    },
    {
      validator: (rule, value, callback) => {
        if (value !== formModel.value.password) {
          callback(new Error('两次输入的密码不一致'))
        } else {
          callback()
        }
      },
      trigger: 'blur'
    }
  ]
}
// 获取el-from实例
const form = ref(null)
//注册方法
const register = async () => {
  toggleLoading()
  await form.value.validate()
  const res = await userRegisterServer(formModel.value)
  ElMessage({
    type: 'success',
    message: res.message,
    showClose: true,
    center: true
  })
  toggleLoading()
  console.log(res)
}
//切换注册和登录
watch(isRegister, () => {
  formModel.value = {
    username: '',
    password: '',
    repassword: ''
  }
})
// 登陆方法
const login = async () => {
  try {
    toggleLoading()
    await form.value.validate()
    const res = await userLoginServer(formModel.value)
    userStore.setToken(res.token)
    ElMessage.success(res.message)
    router.push('/')
    toggleLoading()
  } catch {
    toggleLoading()
  }
}
</script>

<template>
  <el-row class="login-page">
    <el-col :span="12" class="bg"></el-col>
    <el-col :span="6" :offset="3" class="form">
      <!-- 注册表单 -->
      <el-form :model="formModel" :rules="rules" ref="form" size="large" autocomplete="off" v-if="isRegister">
        <el-form-item>
          <h1>注册</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input v-model="formModel.username" :prefix-icon="User" placeholder="请输入用户名"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input v-model="formModel.password" :prefix-icon="Lock" type="password" placeholder="请输入密码"
            show-password></el-input>
        </el-form-item>
        <el-form-item prop="repassword">
          <el-input v-model="formModel.repassword" prefix-icon="Lock" type="password" placeholder="请输入再次密码"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button class="button" type="primary" auto-insert-space :loading="isLoading" @click="register()">
            注册
          </el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = false">
            登录
          </el-link>
        </el-form-item>
      </el-form>
      <!-- 登录的表单 -->
      <el-form :model="formModel" :rules="rules" ref="form" size="large" autocomplete="off" v-else>
        <el-form-item>
          <h1>登录</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input v-model="formModel.username" refix-icon="User" placeholder="请输入用户名"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input v-model="formModel.password" name="password" :prefix-icon="Lock" type="password" placeholder="请输入密码"
            :show-password="true"></el-input>
        </el-form-item>
        <!-- 免登录 -->
        <el-form-item class="flex">
          <div class="flex">
            <el-checkbox>记住我</el-checkbox>
            <el-link type="primary" :underline="false">忘记密码？</el-link>
          </div>
        </el-form-item>
        <!-- 登录按钮 -->
        <el-form-item>
          <el-button class="button" type="primary" auto-insert-space :loading="isLoading"
            @click="login()">登录</el-button>
        </el-form-item>
        <!-- 切换到注册 -->
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = true">
            注册
          </el-link>
        </el-form-item>
      </el-form>
    </el-col>
  </el-row>
</template>

<style lang="scss" scoped>
.login-page {
  height: 100vh;
  background-color: #fff;

  .bg {
    background: url('@/assets/logo2.png') no-repeat 60% center / 240px auto,
      url('@/assets/login_bg.jpg') no-repeat center / cover;
    border-radius: 0 20px 20px 0;
  }

  .form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    user-select: none;

    .title {
      margin: 0 auto;
    }

    .button {
      width: 100%;
    }

    .flex {
      width: 100%;
      display: flex;
      justify-content: space-between;
    }
  }
}
</style>